Method for forming a sealed container
AssigneeMinnesota Mining and Manufacturing Company
InventorWalter J. Paciorek
Life of this patent
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Abstract
The barrier in a closure liner can be formed with a distinctive design or logo when the closure liner is inserted in the cap by placing a male embossing die against the sealing layer of the closure liner with sufficient force to emboss an image in the foil layer. The embossing of indicia into the liner at the time the cap is to be placed on the container provides the manufacturer with his own distinctive logo which cannot be readily duplicated thus making the container closure tamper-resistant.
Claims5
A process for imparting indicia onto a closure liner for a container cap during application of the liner to the container cap having a top comprising the steps of:
- inserting a container cap into the liner inserting station of a lining machine,
- inserting a small amount of adhesive into the cap against the top of the cap,
- moving a closure liner laminate, comprising a layer of resilient material having a wax coating which coating contacts one surface of a layer of metal foil on an oposite surface of which is adhered a sealing layer suitable for sealing the laminate to a container, into said inserting station,
- cutting from said laminate a section of said laminate to fit into said cap,
- inserting the cut section of said laminate into said cap,
- pressing said section against the top of said cap, and
- imparting an embossed image into said laminate to define an embossed image in said metal foil.
Dependencies are inferred from the claim text.